Dual-Model Scientific Calc

Dual-Model Scientific Calc is a polished scientific calculator app built for students who want real exam-style practice, not just quick answers. It is especially popular with Hong Kong HKDSE students, but the core value is universal: two Casio-style calculator workflows in one app. **What makes it different** • Switch instantly between fx-50FH II and fx-3650PII style layouts • Practice key positions, mode flow, Replay, and common exam habits • Keep your last model, key setup choices, and saved PRGM programs • Open an optional beginner tutorial whenever you want to learn features step by step **Core calculator features** • 6 core modes: COMP, SD, REG, BASE, CMPLX, PRGM • Trig, logs, exponents, powers, roots, factorial, nPr, nCr • Fractions, complex numbers, statistics, base conversion, and programmable functions • 40 scientific constants and 23 built-in formulas • Ans memory, Multi-replay, and calculation history for faster practice **Best for** • Students who want Casio-style scientific calculator practice • Learners who want to build calculator muscle memory before exams • Anyone who wants a dual-model scientific calculator with programmable support **Optional purchase** • One-time Remove Ads purchase for distraction-free study